You continue to utterly misunderstand the technology, and continue to paint a completely contrived negative picture of the company's road to success based on this lack of understanding.
Nonsense. The next vaccine that could possibly get approval won't be ready for an NDA review until 2017 at the earliest. Vaccines, especially Dengue, are extremely slow through human testing and moreover issues don't show up until expanded testing. That has been the problem with Dengue vaccines for 20 years and nothing has changed, not even for the "new, novel" vaccines.